Question: Which disease has the longest incubation period and whose primary symptoms include abdominal pain?
Paraphrase: Which sickness has the longest incubation period and whose primary signs and symptoms encompass belly pain?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q12136 . ?ent wdt:P3488 ?obj . ?ent wdt:P780 wd:Q183425 } ORDER BY DESC(?obj)LIMIT 5 
Answer: norovirus infection, Crimean-Congo hemorrhagic fever